3/5-1/2= -3/7+1/2= -3/4-2/5= -7/9+1/4= Выполните действие

Question

3/5-1/2=
-3/7+1/2=
-3/4-2/5=
-7/9+1/4=
Выполните действие

Answer 1

3/5-1/2=6/10-5/10=1/10=0,1-3/7+1/2=-6/14+7/14=1/14
-3/4-2/5=-15/20-8/20=-23/20=-1 3/20
-7/9+1/4=-28/36+9/36=-19/36

Answer 2

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